Bug 1881514 - CVO hotloops on imagestreams from cluster-samples-operator
Summary: CVO hotloops on imagestreams from cluster-samples-operator
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Cluster Version Operator
Version: 4.6
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
: 4.8.0
Assignee: Vadim Rutkovsky
QA Contact: Yang Yang
URL:
Whiteboard:
Depends On:
Blocks: 1966977
TreeView+ depends on / blocked
 
Reported: 2020-09-22 14:52 UTC by Stefan Schimanski
Modified: 2021-07-27 22:33 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-07-27 22:33:27 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github openshift cluster-version-operator pull 579 0 None closed Bug 1881514: Prevent hotlooping in ImageStreams 2021-06-01 22:36:44 UTC
Red Hat Product Errata RHSA-2021:2438 0 None None None 2021-07-27 22:33:45 UTC

Description Stefan Schimanski 2020-09-22 14:52:06 UTC 
All imagestreams from https://github.com/openshift/cluster-samples-operator/blob/master/manifests/08-openshift-imagestreams.yaml are constantly updated by CVO, visible from the updated .metadata.managedFields[0].time. Each update causes etcd load.
Comment 1 W. Trevor King 2020-09-22 21:36:17 UTC 
Stefan suggests possibly waiting until API-server support for server-side apply [1] goes GA and rerolling the CVO's apply logic to use that instead of client-side merging, which might help here.  And bug 1879184 might end up with a [Late] CI guard based on the audit logs.  But whatever is going on here is unlikely to be new in 4.6, so punting to 4.7.

[1]: https://kubernetes.io/blog/2020/04/01/kubernetes-1.18-feature-server-side-apply-beta-2/
Comment 3 Stefan Schimanski 2020-09-23 13:12:16 UTC 
I don't think #c1 reflect what I meant. I meant that it is an infinite game with lots of chance for mistakes and failure in writing the perfect client-side merging funcs for all types. Instead the right solution is to triage these bugs, fix the manifests for now and add an e2e test that uncovers the issues before new manifests merge.
Comment 5 W. Trevor King 2020-09-23 16:56:00 UTC 
> ... fix the manifests for now...

If that's what this bug is about, it should be assigned to the samples team, right?

> ... and add an e2e test that uncovers the issues before new manifests merge.

This is bug 1879184, right?

Punting back to 4.7, because I don't see any new-in-4.6 regressions here, and it's really late in the 4.6 cycle to make new 4.6 blockers unless we have a solid story around why this is a critical issue.
Comment 6 Lalatendu Mohanty 2020-09-23 19:13:33 UTC 
> I meant that it is an infinite game with lots of chance for mistakes and failure in writing the perfect client-side merging funcs for all types. Instead the right solution is to triage these bugs, fix the manifests for now 

We should have a bug assigned to respective operator team to fix the manifest.
Comment 7 W. Trevor King 2020-09-23 20:02:59 UTC 
> We should have a bug assigned to respective operator team to fix the manifest.

This is that bug, right?  We just don't know what to tell the samples folks they should be changing.
Comment 8 W. Trevor King 2020-10-02 23:11:56 UTC 
It's end of sprint, and this is not going to get fixed in the next few hours.  Hopefully we will at least get the Late audit guard from bug 1879184 in next sprint, and then we'll see which team should fix this issue.
Comment 9 Jack Ottofaro 2020-10-23 19:03:03 UTC 
Adding UpcomingSprint as we have reached the end of the current sprint and pushing this bug to the next sprint.
Comment 10 Vadim Rutkovsky 2021-05-31 13:02:59 UTC 
This makes scheduled importer stop updating, see https://bugzilla.redhat.com/show_bug.cgi?id=1897075. Bumping severity to high
Comment 12 Yang Yang 2021-06-03 07:34:25 UTC 
Could anyone point me the procedure to reproduce it? I was trying to observe the .metadata.managedFields[0].time but it's not changed.

# oc get clusterversion
NAME      VERSION   AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.7.13    True        False         21h     Cluster version is 4.7.13

# oc get imagestream must-gather -n openshift -ojson | jq -r .metadata
{
  "annotations": {
    "include.release.openshift.io/ibm-cloud-managed": "true",
    "include.release.openshift.io/self-managed-high-availability": "true",
    "include.release.openshift.io/single-node-developer": "true",
    "include.release.openshift.io/single-node-production-edge": "true"
  },
  "creationTimestamp": "2021-06-02T09:37:37Z",
  "generation": 2,
  "managedFields": [
    {
      "apiVersion": "image.openshift.io/v1",
      "fieldsType": "FieldsV1",
      "fieldsV1": {
        "f:metadata": {
          "f:annotations": {
            ".": {},
            "f:include.release.openshift.io/ibm-cloud-managed": {},
            "f:include.release.openshift.io/self-managed-high-availability": {},
            "f:include.release.openshift.io/single-node-developer": {},
            "f:include.release.openshift.io/single-node-production-edge": {}
          }
        },
        "f:spec": {
          "f:tags": {
            ".": {},
            "k:{\"name\":\"latest\"}": {
              ".": {},
              "f:annotations": {},
              "f:from": {
                ".": {},
                "f:kind": {},
                "f:name": {}
              },
              "f:generation": {},
              "f:importPolicy": {
                ".": {},
                "f:scheduled": {}
              },
              "f:name": {},
              "f:referencePolicy": {
                ".": {},
                "f:type": {}
              }
            }
          }
        }
      },
      "manager": "cluster-version-operator",
      "operation": "Update",
      "time": "2021-06-02T09:37:37Z"
    }
  ],
  "name": "must-gather",
  "namespace": "openshift",
  "resourceVersion": "23674",
  "uid": "4129abe3-bde7-4bf4-8217-a5c03310be07"
}

The .metadata.creationTimestamp is the same as .metadata.managedFields[0].time. Does it mean that CVO does not update it?

# grep -i "Updating imagestream" cvo.log
null


I don't find "Updating imagestream" in CVO log either.
Comment 13 Vadim Rutkovsky 2021-06-03 08:00:22 UTC 
(In reply to Yang Yang from comment #12)
> The .metadata.creationTimestamp is the same as
> .metadata.managedFields[0].time. Does it mean that CVO does not update it?

Correct


> # grep -i "Updating imagestream" cvo.log
> null
> 
> 
> I don't find "Updating imagestream" in CVO log either.

The change to log updates verbosely would land in https://github.com/openshift/cluster-version-operator/pull/561, its not there yet
Comment 14 W. Trevor King 2021-06-03 23:57:24 UTC 
Grepping audit logs for updates on the target kind should turn this up.  Like [1], but for 'imagestreams' instead of rolebindings.

[1]: https://bugzilla.redhat.com/show_bug.cgi?id=1881520#c28
Comment 15 Yang Yang 2021-06-04 03:21:39 UTC 
Thanks Trevor and Vadim for your help.

Reproducing with 4.7.13

$ masters=$(oc get no -l node-role.kubernetes.io/master | sed '1d' | awk '{print $1}')

$ oc adm node-logs $masters --path=kube-apiserver/audit.log --raw | zgrep -h '"verb":"update".*"resource":".*imagestreams"' 2>/dev/null | jq -r '.user.username + " " + (.objectRef | .resource + " " + .namespace + " " + .name + " " + .apiGroup) + " " + .stageTimestamp + " " + (.responseStatus | tostring)' | grep imagestream | sort
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:13:18.350801Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:16:52.116254Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:21:13.333628Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:24:49.292675Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:28:19.154926Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:31:59.672553Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:35:53.489343Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:39:23.363201Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:42:58.725996Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:46:36.146882Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli-artifacts image.openshift.io 2021-06-04T02:50:07.862451Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:13:18.154810Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:16:51.918607Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:21:13.129177Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:24:49.089644Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:28:18.962347Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:31:59.478731Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:35:53.305371Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:39:23.177717Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:42:58.538006Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:46:35.962731Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift cli image.openshift.io 2021-06-04T02:50:07.659362Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:13:19.741856Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:16:53.582331Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:21:14.722328Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:24:50.687505Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:28:20.554001Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:32:01.076623Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:35:54.889826Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:39:24.758895Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:43:00.123587Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:46:37.544944Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift hello-openshift image.openshift.io 2021-06-04T02:50:09.259838Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:13:18.745642Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:16:52.521585Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:21:13.723175Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:24:49.686239Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:28:19.552626Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:32:00.075439Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:35:53.895157Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:39:23.765557Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:42:59.125176Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:46:36.543932Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer-artifacts image.openshift.io 2021-06-04T02:50:08.258243Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:13:18.549365Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:16:52.312958Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:21:13.527091Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:24:49.488805Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:28:19.358913Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:31:59.871841Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:35:53.693735Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:39:23.557887Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:42:58.924025Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:46:36.343675Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift installer image.openshift.io 2021-06-04T02:50:08.058345Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:13:19.342628Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:16:53.112513Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:21:14.322371Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:24:50.285705Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:28:20.155903Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:32:00.671161Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:35:54.490838Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:39:24.357924Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:42:59.723782Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:46:37.143230Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift must-gather image.openshift.io 2021-06-04T02:50:08.857599Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:13:19.541364Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:16:53.313618Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:21:14.520943Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:24:50.487203Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:28:20.354853Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:32:00.872161Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:35:54.689903Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:39:24.566795Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:42:59.922870Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:46:37.344117Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift oauth-proxy image.openshift.io 2021-06-04T02:50:09.058366Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:13:18.944338Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:16:52.718384Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:21:13.922362Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:24:49.887075Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:28:19.758395Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:32:00.272621Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:35:54.088160Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:39:23.959824Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:42:59.323004Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:46:36.743157Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tests image.openshift.io 2021-06-04T02:50:08.458515Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:13:19.144204Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:16:52.913053Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:21:14.120607Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:24:50.088247Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:28:19.952674Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:32:00.472495Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:35:54.289021Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:39:24.159460Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:42:59.524725Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:46:36.945209Z {"metadata":{},"code":200}
system:serviceaccount:openshift-cluster-version:default imagestreams openshift tools image.openshift.io 2021-06-04T02:50:08.657373Z {"metadata":{},"code":200}

All imagestreams in https://github.com/openshift/cluster-samples-operator/blob/master/manifests/08-openshift-imagestreams.yaml are updated every 3~4 minutes.
Comment 16 Yang Yang 2021-06-04 07:25:35 UTC 
Verifying with 4.8.0-0.nightly-2021-06-02-025513

$ oc get clusterversion
NAME      VERSION                             AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.8.0-0.nightly-2021-06-02-025513   True        False         78m     Cluster version is 4.8.0-0.nightly-2021-06-02-025513

# masters=$(oc get no -l node-role.kubernetes.io/master | sed '1d' | awk '{print $1}')

# oc adm node-logs $masters --path=kube-apiserver/audit.log --raw | zgrep -h '"verb":"update".*"resource":".*imagestreams"' 2>/dev/null | jq -r '.user.username + " " + (.objectRef | .resource + " " + .namespace + " " + .name + " " + .apiGroup) + " " + .stageTimestamp + " " + (.responseStatus | tostring)' | grep imagestream | sort

null

No hotloops on imagestreams. Moving it to verified state.
Comment 21 errata-xmlrpc 2021-07-27 22:33:27 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: OpenShift Container Platform 4.8.2 bug fix and security update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2021:2438
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